We've just release a new release candidate for MDLite, MDLite RC2 (version 1.0791).

We've fixed lot of small things, languages, layouts, and lot of files modified.

With RC releases we don't offer any upgrade procedure, anyways if you want to upgrade from previous MDLite RC you can try to, delete all files, copy all RC2 files, edit and setting config/md-config.php file then go in Tinymax administration open, check parametres and paths and save it. 

You can get other info's about MDLite here [1]